[asterisk-users] Polycom IP601 - some hints working, not others?

[Robert Jenkins]

Hi,
I've got an Asterisk setup including a TDM2400 for analog trunks &
extensions plus two IP501s & an IP601 (all firmware 1.6.7 as supplied).

The initial buddy / hint setup was fairly straightforward, but I have a
strange problem in that some extensions don't show any status indication.

Asterisk (V 1.2.13) CLI report for 'show hints' seems to indicate that the
hints are set up correctly, but the phones are just not attempting to
monitor certain extensions:-

  -= Registered Asterisk Dial Plan Hints =-
   304                 : ZAP/4                 State:Idle
Watchers  0
   303                 : ZAP/3                 State:Idle
Watchers  0
   302                 : ZAP/2                 State:Idle
Watchers  0
   301                 : ZAP/1                 State:Idle
Watchers  0
   210                 : ZAP/16                State:Idle
Watchers  0
   209                 : ZAP/15                State:Idle
Watchers  0
   208                 : ZAP/14                State:Idle
Watchers  3
   207                 : ZAP/13                State:Idle
Watchers  3
   206                 : ZAP/12                State:Idle
Watchers  3
   205                 : ZAP/11                State:Idle
Watchers  0
   204                 : ZAP/10                State:Idle
Watchers  3
   203                 : ZAP/9                 State:Idle
Watchers  0
   202                 : SIP/202               State:Idle
Watchers  3
   201                 : SIP/201               State:Idle
Watchers  3
   200                 : SIP/200               State:Idle
Watchers  3
----------------

The (mac)-directory.xml files have all the extensions in, in identical
format, but the phones simply don't seem to be subscribing to certain
'buddys' to show the status.

I've tried deleting directory entries at both an IP501 and the IP601 and
re-creating them, with & without rebooting, but with no effect.
All entries have buddy watch enabled.
The list of working / not working indications is consistent across reboots
of both the phones and the Asterisk PC.

Any ideas appreciated,

Robert Jenkins.